I did some measuring and made some photographs I can't post yet.

Rough unit 1, 802-8D badged, without rear cover, loading cap, diaphragm and screws: 3,432 gram = 7.57 lb
Rough unit 2, no badge, same conditions: 3,313 gram = 7.30 lb

Interesting!

Extra stuff weighs 175 gram = 0.386 lb add to both to compare with below.

Length from polepiece to front for both units: 68mm = 2.68 inch

Smooth unit with all stuff attatched (to lazy to take it off): 2.866 gram = 6.32 lb

Length from polepiece to front: 64mm = 2.52 inch

So that's 4 mm of difference in length = 0.16 inch, and a weight difference of at least 3.488 (incl stuff) minus 2.866 = 622 gram or 1.37 lb (22.2 oz).

On the net the regular green 806 look quite different (my units are black).